在iageView android中没有显示位图图像？ [英] Bitmap Image is not showing in iageView android?

问题描述

图像存储在Microsoft SQL Server中，我可以轻松地将其检索为字符串但不能在imageVuew中显示

我得到的图像字符串是0x433A5C55736572735C4D616E736F6F725C50696374757265732E436170747572652E4A5047

The Image is stored in Microsoft SQL Server and I am easily able to retrieve it andriod as string but can't display it in imageVuew
The Image String Which I get is 0x433A5C55736572735C4D616E736F6F725C50696374757265732E436170747572652E4A5047

//This is the image string I get from db and it dispalys fine in text view
imageString= resultString.getProperty(7).toString();
//This is how I try to show it in imageview
ImageView iv= (ImageView) findViewById(R.id.ivProfilePic);
byte[] imgBytes = Base64.decode(imagestring, Base64.DEFAULT);
                final Bitmap bitmap = BitmapFactory.decodeByteArray(imgBytes, 0, imgBytes.length);
                iv.setImageBitmap(bitmap);

推荐答案

需要查看图片插入代码。创建表时，您的代码如下：

Need to see your image insertion code. While creating table do you code like:

CREATE TABLE [dbo].[ImgTbl2](
    ..........
    [ImgName] [nvarchar](50) NULL,
    [Img] [nvarchar](max) NULL
)

然后在插入图像之前：

And then before insert your image:

ByteArrayOutputStream stream = new ByteArrayOutputStream();
originBitmap.compress(Bitmap.CompressFormat.PNG, 100, stream);
byteArray = stream.toByteArray();
encodedImage = Base64.encodeToString(byteArray, Base64.DEFAULT);

插入时：

While inserting:

String commands = "Insert into ImgTbl2 (ImgName,Img) values ('"
                    + imageName.getText().toString() + "','" + encodedImage
                    + "')";

如果所有这些都是正确的，那么您的代码将会正常运行。

更多：

Android在MS SQL Server中存储图像 [ ^ ]

如何在/从SQLServer存储/检索图像 [ ^ ]

这篇关于在iageView android中没有显示位图图像？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！